From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 19436 invoked by alias); 3 Jan 2010 07:47:49 -0000 Received: (qmail 19406 invoked by uid 48); 3 Jan 2010 07:47:37 -0000 Date: Sun, 03 Jan 2010 07:47:00 -0000 Message-ID: <20100103074737.19405.qmail@sourceware.org> X-Bugzilla-Reason: CC References: Subject: [Bug tree-optimization/42586] New: load-modify-store on x86 should be \ single instruction In-Reply-To: Reply-To: gcc-bugzilla@gcc.gnu.org To: gcc-bugs@gcc.gnu.org From: "andi-gcc at firstfloor dot org" Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Archive: List-Post: List-Help: Sender: gcc-bugs-owner@gcc.gnu.org X-SW-Source: 2010-01/txt/msg00240.txt.bz2 ------- Comment #15 from andi-gcc at firstfloor dot org 2010-01-03 07:47 ------- As an addendum the unnecessary stack frame seems to be a very common problem, it's in a lot of the examples near the end of http://embed.cs.utah.edu/embarrassing/dec_09/harvest/gcc-head_suncc-5.10/ typically combined with tail call optimization -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42586